Which of the Following Statements About Anoxia Is True

Which of the following statements about anoxia is true?

A) After initial brain injury from anoxia, another phase of cell death can occur several weeks later.
B) Whole-body cooling involves immersing an anoxic newborn in freezing water.
C) The effects of mild or even moderate anoxia rarely persist beyond infancy.
D) When development is severely impaired, the anoxia was probably extreme.